Semantic Navigation on the Web with

farmpaintlickInternet και Εφαρμογές Web

21 Οκτ 2013 (πριν από 3 χρόνια και 11 μήνες)

115 εμφανίσεις

Semantic Navigation on the Web with
SWGET


Valeria
Fionda
1
, Claudio Gutierrez
2
,
Giuseppe
Pirró
1



1

KRDB, Free University of BOZEN
-
BOLZANO, Bolzano, Italy

2

DCC, Universidad de Chile, Santiago, Chile


The graph nature of the
Web of Data with
thousands of interlinked
RDF data sources
needs navigational
languages.





SWGET

is available both as a standalone GUI and a Web portal.

SWGET

enables to write scripts containing navigational expressions written in NautiLOD.

S
cripts
are
represented in RDF and thus
can be shared, modified and reused
.

You can instruct your Semantic Web agent and it will locate information of your behalf.





The
NautiLOD

navigational language enables to:


1.
declaratively specify data sources in the Web of Data;

2.
perform controlled
navigation

across data sources via ASK SPARQL queries;

3.
retrieve
data
along
the navigational
path
;

4.
c
ommand actions during the navigation (e.g., send notification messages).

S
WGET

features

Standalone

GUI

Web

portal

Biomedical

Knowledge

Repository



BKR

A

SW

based

application

that

helps

biologists

interactively

study

and

explore

the

BKR
.

We

developed

the

iExplore

to

1)
visualize

and

navigate

all

the

possible

semantic

predications


2)
search

for

interesting

links

between

concepts
.









iExplore

Access to BKR requires UMLS license from NLM.

iExplore is available at http://knoesis.wright.edu/iExplore

Access to BKR requires UMLS license from NLM.

iExplore is available at http://knoesis.wright.edu/iExplore



PubMed
:

14
M

predications

(facts)

extracted

from

21
M

abstracts

by

normalizing

biomedical

entities

into

Metathesaurus

concepts



UMLS
:

12
M

predications

in

the

Metathesaurus

derived

from

87

sources

integrated

in

the

UMLS


Available at http://knoesis.wright.edu/iExplore



BKR

Schema
:

2
M

hierarchical

concepts

from

Metathesaurus,

and

650

relations

from

Semantic

Network



BKR

Instances
:

26
M

predications

from

PubMed

and

UMLS


LEAPS: A Semantic Web and Linked
data

framework
for the
Algal Biomass Domain

From Algae to Energy via Semantic Web and Linked data

LEAPS enables
stakeholders
in the algal
biomass
domain to interactively explore, via linked data,
potential
algal
sites and sources of their consumables
across
regions
in North
-
Western
Europe for generation
of bioenergy


L
inked
E
ntities for
A
lgal
P
lant
S
ites

The first (known) application of SW/LD to Algal Biomass datasets

Monika Solanki, Birmingham City University, UK


Smart
-
Aleck: An Interestingness Algorithm for
Large Semantic Datasets

Kavi Mahesh
&
Pallavi

Karanth
,

PESIT, India


http://activehiring.labs.exal
ead.com


Revealing HR trends using
LOD cloud

X
-
ENS:
Semantic
Enrichment of Web Search Results at
Real
-
Time

Pavlos Fafalios and Yannis Tzitzikas

Institute of Computer Science (ICS), Foundation for Research and Technology
-
Hellas (FORTH)

Try X
-
ENS:
http
://
139.91.183.72/x
-
ens

query

results

LOD

entities

SWC’12
, Boston, USA

Semantic

Web Challenge 2012 | Alexander Seeliger
and

Heiko
Paulheim

| TU
Darmstadt


A
Semantic

Browser

for Linked Open Data

LOD for end users


is
that

all we can do?

Open Self Medication

-

Self Medication
molecules are rated
(from A to E) given a
tolerance/efficient
ratio.

Semantic

Web Challenge 2012 | Heiko
Paulheim

| TU Darmstadt


Browsing the Semantic Web

with Auto Complete

The Open World Assumption



do we really need to live with it?

SEMANTIC WEB CHALLENGE


iPlant Semantic Web Platform uses SSWAP

(Simple Semantic Web Architecture and Protocol)

to enable Semantic Pipelines across

Distributed Web and High Performance Computing Resources

Live production platform (
http://sswap.info
) offering transaction
-
time OWL reasoning to discover,
construct, and engage on
-
demand semantic pipelines of third
-
party semantic web services

Background image: Creative Commons NASA/NOAA/GSFC/Suomi NPP/VIIRS/Norman Kuring

UC Davis

Texas Advanced Computer Center

University of Arizona

Gessler DDG, Bulka B, Sirin E, Kang Y, Klinov P, Vasquez
-
Gross H, Yu J, Wegrzyn J

SELECT
?
x WHERE
{


?
x
rdf:type

schema:Movie

.


?
x
dbpedia:starring

?y .


?
y
rdf:type

dbpedia:Athlete

.


?
y
rdf:type

dbpedia:MartialArtist

}

0 Results !!!

Did you mean?


SELECT
?
x WHERE
{


?
x
rdf:type

schema:Movie

.


?
x
dbpedia:starring

?y .


?
y
rdf:type

dbpedia:Athlete


}

1.
Brian Lopes

2.
Hugo Soto

3.
...

http://bit.ly/lodatio

Use
RailGB

To Simplify Your Life

14

http://superstreamcollider.org


Strabon

Greek
Adminis
trative
Geograp
hy

National
Observa
tory of
Athens

Geon
ames

Corine

Land
Use
Land
Cover

Coas
tline

Linke
d

GeoD
ata

GeoSPARQL

stSPARQL

SWeFS

National and
Kapodistrian

UNIVERSITY OF ATHENS

K.
Kyzirakos
, M.
Karpathiotakis
, G.
Garbis
, C. Nikolaou, K.
Bereta
, M.
Sioutis
,
I
. Papoutsis, T.
Herekakis
, D.
Michail
, M.
Koubarakis
, and C.
Kontoes

SPUD
-

Semantic Processing of Urban Data

Documents

+

Metadata

Structure

Entities

Links

Views

Insight

Pay
-
as
-
you
-
go, Gain
-
as
-
you
-
go

VISIT SPYROS KOTOULAS & FREDDY LECUE

@ DEMO + POSTER

Tracking
Movement and Attention
of
Crowds
in Real Time Analysing Social
Streams
for London 2012 Opening Ceremony

The Problem

To
manage a big event
requires
tracking in
real time

the
movement

of
crowds

and

if

the event is
capturing

the
attention

of the
audience

Our Approach

Social Media Analysis

Advantages

Pervasive
, and
minimally invasive
.




The
Results
http://streamreasoning.org
/demos/
london2012


18

Exploring the Linked Data Cloud via Contextual Tag
Cloud

For Billion Triples Challenge

Tags

are ontological
terms assigned
to
instances.

A
context

is a set of
tags that defines
a subset of
instances.

In the
Contextual
Tag
Cloud
, the
font size of each tag
reflects
the size of
intersection
between instances of
the context and those of the tag.

Users can construct a context by
clicking on tags or removing them

Tags of an instance can vary
under different inference rules

Tag font sizes
reflect sizes of
intersections.


provides
a more detailed summary of
linkages beyond the LOD cloud
diagram;


helps
casual users explore a large scale
dataset;


helps
data providers find potential
errors or missing
links.


How we stood on the shoulders of
SE
T
I@home


…and made it
SE
K
I@home



S
earch for
E
mbedded
K
nowledge
I
tems

Thomas Steiner

(Universitat Politècnica de Catalunya,
@tomayac
)

Stefan Mirea (Jacobs University Bremen,
@stmirea
)

A need for connection…

Semantic Web Challenge
-

ISWC 2012
-

Boston

13/11/2012


Semantization

of data (events, media, people)


Reconciliation of sparse and highly heterogeneous data


User
-
centric design: discovering, deciding and recommending


Scalability, Caching and Optimization